GILTI is the §951A inclusion that requires US shareholders of controlled foreign corporations to pick up the CFC's low-taxed income currently rather than deferring it. Enacted in the 2017 Tax Cuts and Jobs Act, GILTI reshaped the practitioner conversation for every US person or US corporation with a material foreign subsidiary. This is the walkthrough of how the calculation actually runs.
Before the 2017 Tax Cuts and Jobs Act, the US allowed indefinite deferral of a foreign subsidiary’s active business income. The US parent owed no US tax on that income until the subsidiary distributed a dividend back home. Multinationals exploited this by parking intangibles — patents, brand rights, marketing rights, software licenses — in low-tax jurisdictions and letting the royalty streams accumulate offshore.
| The pre-TCJA offshore-cash game | What it looked like | Why it worked |
|---|---|---|
| Step 1 — Transfer intangibles to a low-tax CFC | US parent licensed patents/brand rights to an Irish, Bermudian, or Cayman subsidiary | Intangibles were highly mobile and priced through transfer-pricing studies |
| Step 2 — The CFC earned massive royalty income | Foreign customer payments and intra-group royalties piled up at the low-tax sub | The economic activity was elsewhere but the income was booked at the CFC |
| Step 3 — Local tax was near zero | Ireland effective rate could reach ~2%; Bermuda / Cayman were 0% | Legal use of local incentives; not evasion, but aggressive planning |
| Step 4 — The CFC did not distribute | Cash sat in the offshore sub year after year | US tax never triggered because no dividend was declared to the US parent |
| The outcome by 2017 | ~$2.6 trillion of US-multinational earnings trapped offshore | Apple alone had ~$250B in Ireland; the largest single case, but not unusual |
Congress had a choice: keep the deferral game and lose the tax base, or rewrite the rules. The TCJA rewrote them with a three-part package.
| TCJA (2017) fix | What it did | Purpose |
|---|---|---|
| §965 — Transition Tax | One-time US tax on all pre-2018 accumulated offshore earnings, at 15.5% (cash) / 8% (illiquid) | Cleared the historical stockpile in one payment (installments allowed over 8 years) |
| §245A — Participation Exemption (100% DRD) | Going forward, dividends from a 10%-owned foreign subsidiary paid to a US C-corp are exempt from US tax | Removed the incentive to keep active business income offshore |
| §951A — GILTI | Current-year US pickup on the CFC’s income above a 10% deemed return on tangible assets | The anti-deferral piece — makes sure the “intangible-driven” portion of CFC income gets taxed now, whether distributed or not |
GILTI is the “anti-Apple” provision. It targets low-tax jurisdictions specifically because the whole design assumes high-tax jurisdictions are already taking their pound of flesh. That is why the §954(b)(4) high-tax election exists — if the CFC is already paying above 18.9% locally, GILTI backs off entirely.
GILTI (§951A) requires the US shareholder of a controlled foreign corporation to include in current US taxable income the CFC’s net tested income above a deemed 10% return on the CFC’s qualified business asset investment (QBAI). The rule was designed to prevent deferral of low-taxed foreign income — particularly income earned from intellectual property held in low-tax jurisdictions — without disturbing the deferral of active foreign business income backed by tangible assets.
| The three-line calc | Formula | What it means |
|---|---|---|
| (1) Tested income | CFC gross income − ECI − subpart F − high-taxed (if HTE) − related-party dividends | The CFC’s ordinary operating income, cleaned of items taxed under other regimes |
| (2) Net deemed tangible return | 10% × QBAI | The “free pass” on a normal return on tangible property |
| (3) GILTI inclusion | Line 1 − Line 2 | The amount picked up on the US shareholder’s return, whether distributed or not |
| Statutory item | Value | Detail |
|---|---|---|
| Deemed tangible return rate | 10% | Applied to QBAI (qualified business asset investment) |
| §250 GILTI deduction (corporate) | 50% | Available to C-corp US shareholders only |
| Effective US rate on GILTI (C-corp) | 10.5% | 21% × (1 - 50%) |
| Foreign Tax Credit haircut | 80% | §960(d) FTC on GILTI |
The GILTI inclusion is the same for a US individual and a US corporation. But the effective US rate on that inclusion is dramatically different because the §250 deduction and the §960(d) foreign tax credit are corporate-only. The table below is the single-page summary.
| Feature | C-corp shareholder | Individual (default) | Individual (§962 election) |
|---|---|---|---|
| Base US rate | 21% corporate | Up to 37% individual | 21% (via §962 fiction) |
| §250 deduction (50%) | Yes | No | Yes (unlocked by §962) |
| Effective US rate on GILTI | 10.5% (21% × 50%) | 37% | 10.5% (currently) |
| §960(d) FTC on Irish/foreign tax | Yes, 80% of foreign tax | No | Yes, 80% (via §962) |
| Break-even foreign effective tax rate for $0 US tax | ~13.125% (10.5% / 80%) | Never — always some US tax | ~13.125% currently |
| Later distribution treatment | Distribution to C-corp shareholders taxed then (separate layer) | Distribution is PTI — tax-free once GILTI already picked up | Distribution is a taxable qualified dividend at 20% + 3.8% NIIT = 23.8% |
| Verdict | The intended outcome — low rate, FTC works | The “GILTI trap” — 37% on Irish profit | Trade current-year tax for a future dividend tax if/when cash comes home |
The §962 election is annual, and the math varies by expected distribution behavior. Practitioners running the §962 analysis should model both regimes end-to-end — the election that reduces current tax may increase lifetime tax if distributions are eventually made. The worked case below traces all three columns line-by-line with a real set of numbers.
Section 954(b)(4) allows a US shareholder to elect to exclude from GILTI tested income any CFC-level income taxed at an effective foreign rate above 90% of the US corporate rate — currently 18.9% (90% of 21%). The election is made annually at the CFC level and can dramatically simplify a high-tax jurisdiction CFC's US tax picture.
Practical effect: A US-owned French or German subsidiary paying local corporate tax at 25-31% likely qualifies for the high-tax exclusion, which removes that CFC's income from GILTI entirely. A US-owned Irish operating subsidiary at the 12.5% Irish rate does not qualify (below 18.9% threshold) and generates GILTI income at the US shareholder level.
The election is at the shareholder level and applied consistently across all CFCs of the shareholder. The reporting mechanism is on Form 5471 Schedule I-1.
Meet Grand Rapids Aerospace, Inc. ("GRA"), a Michigan-headquartered precision-components manufacturer with a 100%-owned Irish operating subsidiary, GRA Ireland Ltd. GRA Ireland runs a real factory in Cork — buildings, machining equipment, quality-inspection lab — and manufactures a product line sold into European aerospace primes. This is a low-tax-jurisdiction CFC. The question every year is: what does the Irish profit cost the US owner in US tax? Same $4M of Irish operating income, three different owners, three completely different answers. The tables below trace each one line-by-line.
Every GILTI calculation starts here. The CFC’s own P&L and its tangible-asset base drive everything downstream. All figures in USD (ignore FX for the walkthrough).
| GRA Ireland Ltd — 2026 facts | Amount | Where it comes from |
|---|---|---|
| Gross revenue | $12,000,000 | Sales to European aerospace primes |
| Cost of goods sold | ($6,000,000) | Raw materials, direct labor, factory overhead |
| Operating expenses | ($2,000,000) | SG&A, R&D, engineering |
| Net operating income — the “tested income” | $4,000,000 | This is the number GILTI pulls into the US return |
| Tangible operating assets (buildings, machinery, tooling) — QBAI | $10,000,000 | Depreciable tangible property basis; the anti-deferral rule assumes a 10% return on these earns a pass |
| Irish corporate tax (12.5% × $4M) | ($500,000) | Paid to Ireland — this is the tax that generates any US Foreign Tax Credit |
| After-Irish-tax cash sitting in Ireland | $3,500,000 | What Ireland Ltd could distribute to the US parent |
This step is identical whether the US shareholder is a C-corp, an individual, or a partnership. The inclusion is what the individual/entity has to pick up on their US return. What changes is how it gets taxed downstream.
| GILTI inclusion calculation | Amount | Formula |
|---|---|---|
| Tested income | $4,000,000 | From Step 1 |
| Deemed tangible return (the “free pass”) | ($1,000,000) | 10% × QBAI = 10% × $10M |
| GILTI inclusion — picked up on the US return | $3,000,000 | Tested income minus deemed tangible return |
Assume GRA Inc. is itself a Delaware C-corp that owns GRA Ireland Ltd. The C-corp gets the §250 deduction and the §960(d) foreign tax credit. This is the “good” outcome that Congress designed the rule around.
| C-corp shareholder | Amount | Note |
|---|---|---|
| GILTI inclusion picked up | $3,000,000 | From Step 2 |
| §250 deduction (50%) | ($1,500,000) | C-corp only |
| Taxable GILTI after deduction | $1,500,000 | |
| US tax at 21% corporate rate | $315,000 | Tentative US tax before FTC |
| Foreign tax credit (80% × $500K Irish tax) | ($400,000) | §960(d) allows 80% of the Irish tax as a GILTI FTC |
| Net US tax owed on GILTI | $0 | FTC exceeds tentative tax; carryover to future GILTI is generally not permitted |
Even in a low-tax jurisdiction like Ireland (12.5%), a US C-corp shareholder pays no incremental US tax on GILTI because the §250 deduction plus the 80% FTC does the job. This is the outcome the statute was designed around. The rate break-even is roughly a 13.125% foreign effective tax rate; Ireland at 12.5% is just below it, so the tentative $315K and the $400K FTC leave a $0 US bill in this case.
Now assume GRA Ireland is owned directly by Sarah, an individual US shareholder (or through an LLC treated as disregarded / a pass-through). She has no C-corp between her and the CFC. The §250 deduction is not available to her, and the §960(d) GILTI FTC is not available to her directly. Here is the “GILTI trap.”
| Individual shareholder (default) | Amount | Note |
|---|---|---|
| GILTI inclusion picked up | $3,000,000 | From Step 2 |
| §250 deduction | $0 | NOT available to individuals |
| Taxable GILTI | $3,000,000 | Full inclusion |
| US tax at top marginal 37% | $1,110,000 | Ordinary income rate applies |
| Foreign tax credit for the Irish tax paid by the CFC | $0 | Individual cannot take §960(d) FTC without §962 election |
| Net US tax owed on GILTI | $1,110,000 | Owed currently, whether or not any cash comes out of Ireland |
| The total tax bite on the $4M of Irish profit (individual, no §962) | Amount | % of Irish profit |
|---|---|---|
| Irish corporate tax already paid | $500,000 | 12.5% |
| US GILTI tax at 37% | $1,110,000 | 27.8% |
| Combined tax burden | $1,610,000 | 40.3% |
| Amount of cash still sitting in Ireland (untouched) | $3,500,000 | — |
Sarah owes $1.11M of US tax this year on Irish profits she may never actually receive. The Irish subsidiary already paid $500K locally. She is now writing a check for the balance without a dollar of Irish cash having crossed the Atlantic.
The §962 election lets Sarah be taxed on GILTI as if she were a C-corp for this one purpose. She unlocks the §250 deduction and the FTC. The trade-off: any subsequent distribution of the same $4M from Ireland is taxed again as a dividend when it hits her personally.
| Individual shareholder with §962 election | Amount | Note |
|---|---|---|
| GILTI inclusion picked up | $3,000,000 | From Step 2 |
| §250 deduction (unlocked by §962) | ($1,500,000) | Now available |
| Taxable GILTI after deduction | $1,500,000 | |
| US tax at 21% (corporate rate applied via §962) | $315,000 | Tentative |
| Foreign tax credit 80% × $500K Irish tax | ($400,000) | Now available via §962 |
| Current-year US tax under §962 | $0 | Same as the C-corp result — for now |
| Later — when Ireland distributes the $3M of GILTI-taxed earnings to Sarah: | ||
| Distribution of GILTI-inclusion amount ($3M) — taxed as a qualified dividend | $3,000,000 | Because §962 was elected, the distribution is not treated as previously-taxed income to Sarah personally |
| Federal tax at 20% qualified-dividend rate + 3.8% NIIT = 23.8% | $714,000 | Owed in the year of distribution |
| Lifetime US tax under §962 (current + eventual distribution) | $714,000 | |
Same $4M of Irish operating profit. Same $500K of Irish tax already paid. Three owners.
| Owner scenario | Current-year US tax on GILTI | Eventual US tax on distribution | Combined US tax (before Irish) |
|---|---|---|---|
| C-corp shareholder | $0 | Depends on shareholder-level dividend | $0 at the C-corp layer |
| Individual — no §962 | $1,110,000 | $0 (already taxed as GILTI) | $1,110,000 |
| Individual — with §962 | $0 | $714,000 (only when actually distributed) | $714,000 (deferred) |
Change one variable: instead of Ireland at 12.5%, assume the subsidiary is in Germany at a 30% effective rate. Same $4M of tested income, same $10M QBAI. The subsidiary pays $1.2M of German tax instead of $500K of Irish tax. Because 30% > 18.9% (the 90%-of-US-rate threshold), the shareholder can elect the §954(b)(4) high-tax exclusion (HTE) and remove this CFC’s income from GILTI entirely.
| GRA Germany GmbH — HTE election | Without HTE | With HTE elected |
|---|---|---|
| Tested income entering GILTI pool | $4,000,000 | $0 (excluded) |
| GILTI inclusion at the US shareholder | $3,000,000 | $0 |
| Current US tax — C-corp owner (with FTC) | $0 | $0 |
| Current US tax — individual owner (no §962) | $1,110,000 | $0 |
| Current US tax — individual owner (with §962) | $0 | $0 |
| Compliance simplicity | Full GILTI calc, Form 8992 | Excluded from GILTI pool; just Form 5471 Schedule I-1 election |
For a US individual owner of a German operating subsidiary, the HTE election is often the single most valuable planning move in the international-tax stack — it eliminates the $1.11M “GILTI trap” entirely without requiring the §962 election. For a US C-corp owner the numbers are the same either way ($0 in both columns) but the compliance simplification is meaningful.
Form 5471: Filed annually by US shareholders of foreign corporations. Category 4 and Category 5 filers include US shareholders of CFCs. Schedule I reports the GILTI inclusion; Schedule I-1 reports the underlying tested income calculation.
Form 8992: The GILTI calculation and reporting form filed at the US shareholder level. Aggregates tested income and QBAI across all CFCs to compute the shareholder's GILTI inclusion.
Form 8993: The §250 deduction reporting form for C-corp US shareholders claiming the 50% GILTI deduction.
Penalties for late or incomplete Form 5471 filings are substantial — $10,000 initial penalty per required form, escalating with continued failure. The IRS has increased Form 5471 enforcement activity materially since 2020.
Section 250 grants US C-corporations two distinct deductions: the 50% GILTI deduction discussed above, and a separate 37.5% deduction for Foreign-Derived Intangible Income (FDII). FDII is the domestic-side counterpart to GILTI: it rewards US C-corporations that earn export income from serving foreign markets from a US location, effectively lowering the US rate on qualifying foreign-derived deduction-eligible income (FDDEI) to 13.125%.
Practitioners assessing a US C-corp shareholder’s international tax position almost always model FDII in parallel with GILTI, because the two provisions interact through the same §250 deduction and the same taxable income limitation. A C-corp with material foreign customer export income and a low-tax CFC subsidiary will find that both provisions apply, and the taxable-income limitation on §250 may bind when GILTI + FDII combine.
A separate reference page on FDII is planned for the next quarterly refresh cycle. In the meantime, practitioners modeling GILTI at a C-corp shareholder should coordinate with the FDII computation for the same taxpayer.
The applied companion: The Baratelli International Tax & Cross-Border Wealth guide walks the full CFC and GILTI analysis with worked cases across mid-market operating structures.
Full reference: Baratelli International Tax Reference hub.
Print edition: Download the GILTI print PDF.
GILTI stands for Global Intangible Low-Taxed Income. It is a U.S. tax rule introduced by the 2017 Tax Cuts and Jobs Act under IRC §951A. GILTI requires U.S. shareholders of Controlled Foreign Corporations (CFCs) to include in current U.S. taxable income most of the CFC's earnings that exceed a deemed 10 percent return on tangible business assets (called QBAI, Qualified Business Asset Investment). The design intent was to prevent U.S. multinationals from parking intangible-driven profits in low-tax jurisdictions.
GILTI equals the CFC's tested income minus a deemed 10 percent return on QBAI (Qualified Business Asset Investment, the CFC's adjusted basis in depreciable tangible property). For a C corporation shareholder, the GILTI inclusion is then reduced by the §250 deduction (50 percent through 2025, dropping to 37.5 percent starting 2026), producing an effective U.S. rate of roughly 10.5 percent through 2025 and 13.125 percent thereafter, before foreign tax credits. See the worked example above for the full mechanics.
Any U.S. person (individual, corporation, trust, or estate) who is a U.S. shareholder of a Controlled Foreign Corporation. A U.S. shareholder is generally a U.S. person owning 10 percent or more of the CFC by vote or value. A CFC is a foreign corporation with more than 50 percent U.S. shareholder ownership. Individual U.S. shareholders can mitigate GILTI's impact by making a §962 election to be taxed as a corporation on their CFC income, unlocking the §250 deduction and foreign tax credit. See the GILTI + §962 Calculator for a modeled comparison.
The §250 deduction is a deduction available to C corporations (and individuals making a §962 election) equal to 50 percent of their GILTI inclusion through tax year 2025, dropping to 37.5 percent starting in tax year 2026. At the 21 percent corporate rate, this produces an effective GILTI rate of 10.5 percent (through 2025) or 13.125 percent (2026 forward). The §250 deduction is subject to a taxable-income limitation and cannot create a net operating loss.
C corporations can claim a foreign tax credit for 80 percent of the foreign taxes attributable to their GILTI inclusion under §960(d). GILTI has its own separate foreign tax credit basket (§904(d)(1)(A)), which means excess foreign taxes on GILTI cannot cross-credit against other foreign-source income. Because only 80 percent of foreign taxes are creditable, the effective foreign tax rate that fully offsets GILTI is roughly 13.125 percent (with the 50 percent §250 deduction) or 16.4 percent (starting 2026 with the 37.5 percent §250 deduction).
The GILTI high-tax exclusion (HTE), regulated under Treas. Reg. §1.951A-2(c)(7), is an annual election allowing U.S. shareholders to exclude from GILTI any CFC gross tested income that was subject to an effective foreign tax rate greater than 90 percent of the U.S. corporate rate (currently 18.9 percent). The election is made on a tested-unit basis and applies for the year of election and future years unless revoked. The trade-off: excluded income is not GILTI, but the associated foreign taxes are not creditable and the QBAI attributable to the excluded income is also excluded.
Subpart F income is excluded from GILTI. If a CFC's income is already includible as Subpart F under §952 (passive income, foreign base company income, insurance income), that income is removed from the GILTI tested-income computation. This means the U.S. shareholder is not double-taxed but does need to track Subpart F and GILTI separately, since they have different foreign tax credit rules (Subpart F has its own basket, and Subpart F allows a 100 percent foreign tax credit versus GILTI's 80 percent).
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